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Infographics : Parts of the circulatory system | Science Olympiad Class 7 PDF Download

Infographics : Parts of the circulatory system | Science Olympiad Class 7

The document Infographics : Parts of the circulatory system | Science Olympiad Class 7 is a part of the Class 7 Course Science Olympiad Class 7.
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FAQs on Infographics : Parts of the circulatory system - Science Olympiad Class 7

1. What are the main parts of the circulatory system?
Ans. The main parts of the circulatory system include the heart, blood vessels, and blood. The heart pumps blood throughout the body, blood vessels (arteries, veins, and capillaries) transport blood, and blood carries oxygen, nutrients, and waste products.
2. How does the heart function in the circulatory system?
Ans. The heart functions as a pump to circulate blood. It has four chambers: the right atrium and ventricle, which receive deoxygenated blood from the body, and the left atrium and ventricle, which pump oxygenated blood to the body. The heart also has valves that prevent backflow of blood.
3. What roles do arteries and veins play in the circulatory system?
Ans. Arteries carry oxygenated blood away from the heart to the body's tissues, while veins carry deoxygenated blood back to the heart. This ensures that oxygen and nutrients reach cells and waste products are removed efficiently.
4. Why is blood important in the circulatory system?
Ans. Blood is crucial because it transports oxygen, nutrients, hormones, and other essential substances to cells and tissues. It also helps remove carbon dioxide and waste products, playing a vital role in maintaining homeostasis in the body.
5. What is the difference between systemic and pulmonary circulation?
Ans. Systemic circulation refers to the movement of blood from the heart to the rest of the body and back, delivering oxygen and nutrients. Pulmonary circulation is the movement of blood from the heart to the lungs and back, allowing for oxygenation of blood and removal of carbon dioxide.
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